Oh that's always a possibility, but as it is now we have a glut of Mandolorian groups who seek the same aim you do. Some possibles for 'Rogue' are the one I just listed which is a haven for all Mandolorians, this group which is a cool band of Mando misfits who do good in the galaxy, This company which was formerly the Fett clan now a group of mercenaries, and this Clan which is one of the last traditional clans and arguably the strongest
and I'll mention my own group which seeks to be a force for the good of all and has several Mandolorian members.